Image stabilizer for silver halide photographic material

Details Image stabilizer for silver halide photographic material Image stabilizer for silver halide photographic material

G - Physics

03

C

23/1, 96/57

G03C 5/38 (2006.01) G03C 5/39 (2006.01)

Patent

CA 1244625

ABSTRACT OF THE DISCLOSURE An image stabilizer for silver halide photographic materials which contains a water-soluble bismuth compound is disclosed. In a preferred embodiment, the stabilizer also contains a water soluble chelating agent capable of forming a bismuth complex or its salt having a stability constant (log KMA) of 3 or more, the constant being represented by formula (I): Image (I) wherein M is a bismuth ion and A is a complex forming anion. By using this stabilizer, the processed dye image is kept stable over an extended period and the occurrence of yellow stain in the non-image area is inhibited. The stabilizer is applicable not only to color photographic materials but also to black-and- white materials.

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